Wrong textures appear in rendered view
Found the problem!

Some faces overlap and causes some rendering problems. Go into Edit Mode and move some of the faces away from its overlapping part.

Note: Since you didn't give me a texture to work with, I simply used my own...



Another solution: Remove Doubles (Press "w"), but this will make you have to unwrap some faces again.

Nice house by the way!

Another problem: The overlapping faces that are causing render problems isn't properly unwrapped:



I'm assuming you know how to unwrap, so go ahead and do that!

P.S: Select everything in Edit Mode and press ctrl + n. This will recalculate the normals and make you feel more organised ;)

Happy Blending!